Influence of channel tortuosity on the lightning return stroke electromagnetic field in the time domain
文献类型:期刊论文
作者 | Zhao, Zhong-kuo1,2; Zhang, Qi-lin3 |
刊名 | ATMOSPHERIC RESEARCH
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出版日期 | 2009-02-01 |
卷号 | 91期号:2-4页码:404-409 |
关键词 | Lightning channel tortuosity EM field Return strokes Retardation effect |
ISSN号 | 0169-8095 |
DOI | 10.1016/j.atmosres.2008.05.013 |
通讯作者 | Zhao, Zhong-kuo(zhk_xinpian@hotmail.com) |
英文摘要 | The effect of lightning channel tortuosity on the associated electromagnetic (EM) fields in the time domain is investigated quantitatively from a new point of view. Due to the vanishing of geometric symmetry when taking into account the tortuosity of lightning channels, it is necessary to calculate the associated EM fields in the Cartesian coordinate system. An efficient technique is adopted to produce tortuous lightning channels and then the fractal dimension of the channel is calculated automatically by a program. The results show that at close distances. the dependence of EM fields on azimuth is significant, the ratio of MF peaks at two coaxial points with the channel base may reach about 4 and that of the EF may be larger than 2. With increased distance, the dependence of waveform on azimuth weakens. At distances of 10 km and 100 km, the current peaks derived from the EF peaks show good consistency with the current peak adopted, with an uncertainty less than 25%. (C) 2008 Elsevier B.V. All rights reserved. |
收录类别 | SCI ; ISTP |
WOS关键词 | RADIATION |
WOS研究方向 | Meteorology & Atmospheric Sciences |
WOS类目 | Meteorology & Atmospheric Sciences |
语种 | 英语 |
WOS记录号 | WOS:000263193900035 |
出版者 | ELSEVIER SCIENCE INC |
URI标识 | http://www.irgrid.ac.cn/handle/1471x/2556189 |
专题 | 寒区旱区环境与工程研究所 |
通讯作者 | Zhao, Zhong-kuo |
作者单位 | 1.Chinese Acad Sci, Lab Middle Atmosphere & Global Environm Observat, Inst Atmospher Phys, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China 3.Nanjing Univ Informat Sci & Technol, Coll Remote Sensing, Nanjing 210044, Peoples R China |
推荐引用方式 GB/T 7714 | Zhao, Zhong-kuo,Zhang, Qi-lin. Influence of channel tortuosity on the lightning return stroke electromagnetic field in the time domain[J]. ATMOSPHERIC RESEARCH,2009,91(2-4):404-409. |
APA | Zhao, Zhong-kuo,&Zhang, Qi-lin.(2009).Influence of channel tortuosity on the lightning return stroke electromagnetic field in the time domain.ATMOSPHERIC RESEARCH,91(2-4),404-409. |
MLA | Zhao, Zhong-kuo,et al."Influence of channel tortuosity on the lightning return stroke electromagnetic field in the time domain".ATMOSPHERIC RESEARCH 91.2-4(2009):404-409. |
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来源:寒区旱区环境与工程研究所
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